Kellahan is an internationally exhibited artist with 18 years painting and curating experience. In 2011 she was selected to represent New Zealand at the Biennale of Chianciano in Italy. 160 artists worldwide participated, Kellahan won third place in the Leonardo Prize, Works on Paper category.

In 2011 she was a finalist and in 2009 Kellahan won the prestigious Cricket Art Prize in Australia. Kellahan has exhibited at the 2006 Florence Biennale in Italy, and her work featured in Denis Robinson's book, 'New Zealand's Favourite Artists'. Her work was selected by the Royal Academy of Arts, London in 2000.

With Kellahan’s recent international acclaim in Europe and Australia, she is now receiving offers to exhibit in London, Paris and Hong Kong.

Kellahan’s paintings are forceful and thought provoking. Fascinated by tension and abstraction, her work’s draw on atmospheric ambiguity and intuition.

Kellahan’s sensuous works have been crafted onto canvas, paper, and wood. Japanese tissue mixed with mediums and oils are layered and varnished, rubbed down and painted over. These organic textures and constrained tonal varieties achieve physically rich paintings with resonant depth, imbued with light and potency.

The artist paints free and fast, feelings on alert. Works evolve into permanence, stillness and flow. Fire and air is cast into a turbulent sky while water cascades through the canvas, seeping into the earth below.

Birdlife is a major theme through much of the artist’s work. Theatrical like paintings use symbols such as masks and birds to explore themes of courtship, sexuality, relationships and identity.

Once the painting is mastered, Kellahan will get some distance from the work and embrace its power, she writes: I know when a painting is complete because it dominates and seduces me, drawing me into its surface and locking me into its energy.